I've thought about this, too (only for paintball). The best way I've figured it would be to put a small laceration into the top of the barrel, near the breech. Then obtain o-rings to fit in these slits and place the o-ring in such a way so that part of the o-ring is actually in the barrel. I've included a diagram to help better understand it.

0

Attachments

This is actually not my idea. A discussion came up a while back about it. I just incorporated it for use.

Yeah, it may be hard to accomplish using that size barrel. However, your idea seems more like normal porting. I don't know how effective it's going to be in creating hop-up. It may work, but I don't know.

Your idea will most likely not work, and drilling small holes in small diameter metal pipe is a [female doggy]. All you need to is cut a tiny slot in the end of your barrel (perpendicular to end of barrel, about 1 cm from the end) and put an O-ring in it. It works great, and replacement O-ringas are only like $0.10 at that size.

noname wrote:Your idea will most likely not work, and drilling small holes in small diameter metal pipe is a [female doggy]. All you need to is cut a tiny slot in the end of your barrel (perpendicular to end of barrel, about 1 cm from the end) and put an O-ring in it. It works great, and replacement O-ringas are only like $0.10 at that size.

well i'm gonna be drilling holes anyway becasue i'm gonna suppress it so i was just wondering if the postition of the holes affected the spin on the bb.

and if i was to put a strip of rubber along the top of my barrel how long would it need to be and if the barrel was a tight fit would tape work?

it would make the gun more accurate because it would counteract any spin put on the bb becasue of

Would it?

As far as I know, the whole point of hop-up is to give BBs an upwards spin in order to flatter the trajectory, to compensate for projectile drop which is more evident in BBs due to their very poor ballistic co-efficient. Since you'll be firing "heavyweight" BBs at much higher velocities than normal BB guns, I wouldn't bother.

no... not sheep intestines aluminium tube but there will probably be imperfections becasue its not designed to be super smooth and perfect i assume although i'll have a look later when i buy it, and i want hop up to give awsome range and accuracy.

no one has answered my qustion though, would the porting along the top of the barrel put backspin on the bb or not?